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Software > WebSphere > WebSphere Portal Family > WebSphere Portal System requirements The following requirements must be met to support the basic installation and use of WebSphere Portal: Ready to buy? View pricing & buy Technical details Infocenter   Operating System Software Hardware AIX 5L v5.3, AIX v6.1, HP-UX 11i v2, HP-UX 11i v3, i5/OS , Linux, Solaris 9, Solaris 10, Windows 2000, Windows 2003 View the most current and complete system requirements IBM BladeCenter® processor IBM compatible x86-32 processor IBM OpenPower™ processor IBM POWER™ processor IBM System i™ processor IBM System p™ (pSeries®) processor IBM System z™ processor Hewlett-Packard PA-RISC processor Sun Sparc processor Intel® Pentium® processor at 500MHz or faster AMD Opteron processor (32 and 64 bit kernel support) Intel EM64T processor (32 and 64 bit kernel support)